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Ivan
3 years ago
9

Write an equation of the line below. HELP ASAP!!

Mathematics
2 answers:
scZoUnD [109]3 years ago
7 0

Answer: y= x/4+4

Step-by-step explanation:

So we can see the points are (-8,2), (0,4)

Every equation of a line has the equation y=mx+b

substituting the x and y values we get

2= -8m+b

4=0m+b=b

so b=4, and if we put that in the first equation we get m= 1/4.

So the equation of the line will be y= x/4+4

kkurt [141]3 years ago
7 0

Answer:

Step-by-step explanation:

The equation of a straight line can be represented in the slope-intercept form, y = mx + c

Where c = intercept

Slope, m =change in value of y on the vertical axis / change in value of x on the horizontal axis

change in the value of y = y2 - y1

Change in value of x = x2 -x1

y2 = final value of y

y 1 = initial value of y

x2 = final value of x

x1 = initial value of x

From the graph

y2 = 5

y1 = 4

x2 = 4

x1 = 0

Slope, m = (5 - 4)/(4 - 0) = 1/4

To determine the intercept, c, we would substitute m = 1/4, x = 4 and y = 5 into y = mx + c. It becomes

5 = 1/4 × 4 + c

5 = 1 +c

c = 5 - 1 = 4

The equation becomes

y = x/4 + 4

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What is the x And y intercept of (10,0) and (0,-10)
Radda [10]

The y-intercept is found by letting x = 0 and finding / calculating y.  That would be (0, -10).  

The x-int. is found by letting y = 0 and finding x.  That would be (10,0).

4 0
3 years ago
Equivalent expression for (x+6)-5+9
Bumek [7]

Answer:

x + 10

Step-by-step explanation:

(x + 6) - 5 + 9 \\  = x + 6 + 4 \\  = x + 10

7 0
3 years ago
Which of the following represents the inequality shown below when solved for x?
kkurt [141]

Answer:

Option C. x < -\frac{14}{5}y

Step-by-step explanation:

we have

-\frac{5x}{8} > \frac{14y}{8}

Solve for x

That means ---> isolate the variable x

Multiply by 8 both sides to remove the fractions

-5x>14y

Multiply by -1 both sides

Remember that

When you multiply or divide both sides of an inequality by a negative number, you must reverse the inequality symbol

5x

Divide by 5 both sides

x < -\frac{14}{5}y

6 0
4 years ago
The number of customers on the first day are (6×-3) the number of customers on the second day is (×-1) how many more customers v
EleoNora [17]

The number of customers who visited more on first day = ( 5 x - 2)

<h2>248 more people visited on the first day. </h2>

Step-by-step explanation:

The total number of customers visiting on first day  = (6 x - 3)

The total number of customers visiting on second day  = (x - 1)

The difference in the number of customers

= Number of customer visiting ( First day - Second Day)

= (6x  - 3) - (x- 1)  = 6 x - 3 - x +  1  = 5 x - 2

So, the number of customers who visited more on first day = ( 5 x - 2)

Now, when x  = 50, ( 5 x - 2) = (5 (50) - 2)  = 250 - 2  = 248

Hence, 248 more people visited on the first day.

7 0
3 years ago
Simplify tan9x-tan5x / 1+tan9xtan5x<br> (SHOW WORK)
Charra [1.4K]

Answer:

The simplest form is tan(4x)

Step-by-step explanation:

* Lets revise the identity of the compound angles

- tan(a+b)=\frac{tan(a)+tan(b)}{1-tan(a)tan(b)}

- tan(a-b)=\frac{tan(a)-tan(b)}{1+tan(a)tan(b)}

* Lets solve the problem

- Let 9x = 5x + 4x

∴ tan(9x) = tan(5x + 4x)

- Use the rule of the compound angle

∵ \frac{tan(9x)-tan(5x)}{1+tan(9x)tan(5x)} ⇒ (1)

∵ tan(5x+4x)=\frac{tan(5x)+tan(4x)}{1-tan(5x)tan(4x)} ⇒ (2)

∵ tan(9x) = equation (2)

- Substitute (2) in (1)

∴ \frac{\frac{tan(5x)+tan(4x)}{1-tan(5x)tan(4x)}-tan(5x)}{1+(\frac{tan(5x)+tan(4x)}{1-tan(5x)tan(4x)})tan(5x)}

- Multiply up and down by (1 - tan(5x)tan(4x))

∴ \frac{tan(5x)+tan(4x)-tan(5x)[1-tan(5x)tan(4x)]}{1-tan(5x)tan(4x)+tan(5x)[tan(5x)+tan(4x)]}

- Simplify up and down

∴ \frac{tan(5x)+tan(4x)-tan(5x)+tan^{2}(5x)tan(4x)}{1-tan(5x)tan(4x)+tan^{2}(5x)+tan(5x)tan(4x) }

∴ \frac{tan(4x)+tan^{2}(5x)tan(4x)}{[1+tan^{2}(5x)]}

- Take tan(4x) as a common factor up

∴ \frac{tan(4x)[1+tan^{2}(5x)]}{[1+tan^{2}(5x)]}

- Cancel [1 + tan²(5x)] up and down

∴ The answer is tan(4x)

4 0
4 years ago
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